[PATCH] 8139too: use iomap for pio/mmio
This patch converts the 8139too driver to use the iomap infrastructure
for PIO and MMIO instead of playing macro tricks. I also had to fix
read_eeprom(), mdio_sync(), mdio_read(), and mdio_write() to not pass
PIO base address to MMIO read() and write() functions. In addition,
the patch adds proper __iomem annotations for the driver.
Both modes, PIO and MMIO, were tested with a RealTel RTL8139 card on
an x86 box. The 8129 support remains untested due to lack of
hardware.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
diff --git a/drivers/net/8139too.c b/drivers/net/8139too.c
index d4bd20c..047202c 100644
--- a/drivers/net/8139too.c
+++ b/drivers/net/8139too.c
@@ -569,7 +569,7 @@
};
struct rtl8139_private {
- void *mmio_addr;
+ void __iomem *mmio_addr;
int drv_flags;
struct pci_dev *pci_dev;
u32 msg_enable;
@@ -614,7 +614,7 @@
MODULE_PARM_DESC (media, "8139too: Bits 4+9: force full duplex, bit 5: 100Mbps");
MODULE_PARM_DESC (full_duplex, "8139too: Force full duplex for board(s) (1)");
-static int read_eeprom (void *ioaddr, int location, int addr_len);
+static int read_eeprom (void __iomem *ioaddr, int location, int addr_len);
static int rtl8139_open (struct net_device *dev);
static int mdio_read (struct net_device *dev, int phy_id, int location);
static void mdio_write (struct net_device *dev, int phy_id, int location,
@@ -638,46 +638,20 @@
static void rtl8139_hw_start (struct net_device *dev);
static struct ethtool_ops rtl8139_ethtool_ops;
-#ifdef USE_IO_OPS
-
-#define RTL_R8(reg) inb (((unsigned long)ioaddr) + (reg))
-#define RTL_R16(reg) inw (((unsigned long)ioaddr) + (reg))
-#define RTL_R32(reg) ((unsigned long) inl (((unsigned long)ioaddr) + (reg)))
-#define RTL_W8(reg, val8) outb ((val8), ((unsigned long)ioaddr) + (reg))
-#define RTL_W16(reg, val16) outw ((val16), ((unsigned long)ioaddr) + (reg))
-#define RTL_W32(reg, val32) outl ((val32), ((unsigned long)ioaddr) + (reg))
-#define RTL_W8_F RTL_W8
-#define RTL_W16_F RTL_W16
-#define RTL_W32_F RTL_W32
-#undef readb
-#undef readw
-#undef readl
-#undef writeb
-#undef writew
-#undef writel
-#define readb(addr) inb((unsigned long)(addr))
-#define readw(addr) inw((unsigned long)(addr))
-#define readl(addr) inl((unsigned long)(addr))
-#define writeb(val,addr) outb((val),(unsigned long)(addr))
-#define writew(val,addr) outw((val),(unsigned long)(addr))
-#define writel(val,addr) outl((val),(unsigned long)(addr))
-
-#else
-
/* write MMIO register, with flush */
/* Flush avoids rtl8139 bug w/ posted MMIO writes */
-#define RTL_W8_F(reg, val8) do { writeb ((val8), ioaddr + (reg)); readb (ioaddr + (reg)); } while (0)
-#define RTL_W16_F(reg, val16) do { writew ((val16), ioaddr + (reg)); readw (ioaddr + (reg)); } while (0)
-#define RTL_W32_F(reg, val32) do { writel ((val32), ioaddr + (reg)); readl (ioaddr + (reg)); } while (0)
+#define RTL_W8_F(reg, val8) do { iowrite8 ((val8), ioaddr + (reg)); ioread8 (ioaddr + (reg)); } while (0)
+#define RTL_W16_F(reg, val16) do { iowrite16 ((val16), ioaddr + (reg)); ioread16 (ioaddr + (reg)); } while (0)
+#define RTL_W32_F(reg, val32) do { iowrite32 ((val32), ioaddr + (reg)); ioread32 (ioaddr + (reg)); } while (0)
#define MMIO_FLUSH_AUDIT_COMPLETE 1
#if MMIO_FLUSH_AUDIT_COMPLETE
/* write MMIO register */
-#define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
-#define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg))
-#define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg))
+#define RTL_W8(reg, val8) iowrite8 ((val8), ioaddr + (reg))
+#define RTL_W16(reg, val16) iowrite16 ((val16), ioaddr + (reg))
+#define RTL_W32(reg, val32) iowrite32 ((val32), ioaddr + (reg))
#else
@@ -689,11 +663,9 @@
#endif /* MMIO_FLUSH_AUDIT_COMPLETE */
/* read MMIO register */
-#define RTL_R8(reg) readb (ioaddr + (reg))
-#define RTL_R16(reg) readw (ioaddr + (reg))
-#define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg)))
-
-#endif /* USE_IO_OPS */
+#define RTL_R8(reg) ioread8 (ioaddr + (reg))
+#define RTL_R16(reg) ioread16 (ioaddr + (reg))
+#define RTL_R32(reg) ((unsigned long) ioread32 (ioaddr + (reg)))
static const u16 rtl8139_intr_mask =
@@ -740,10 +712,13 @@
assert (tp->pci_dev != NULL);
pdev = tp->pci_dev;
-#ifndef USE_IO_OPS
+#ifdef USE_IO_OPS
if (tp->mmio_addr)
- iounmap (tp->mmio_addr);
-#endif /* !USE_IO_OPS */
+ ioport_unmap (tp->mmio_addr);
+#else
+ if (tp->mmio_addr)
+ pci_iounmap (pdev, tp->mmio_addr);
+#endif /* USE_IO_OPS */
/* it's ok to call this even if we have no regions to free */
pci_release_regions (pdev);
@@ -753,7 +728,7 @@
}
-static void rtl8139_chip_reset (void *ioaddr)
+static void rtl8139_chip_reset (void __iomem *ioaddr)
{
int i;
@@ -773,7 +748,7 @@
static int __devinit rtl8139_init_board (struct pci_dev *pdev,
struct net_device **dev_out)
{
- void *ioaddr;
+ void __iomem *ioaddr;
struct net_device *dev;
struct rtl8139_private *tp;
u8 tmp8;
@@ -855,13 +830,18 @@
pci_set_master (pdev);
#ifdef USE_IO_OPS
- ioaddr = (void *) pio_start;
+ ioaddr = ioport_map(pio_start, pio_len);
+ if (!ioaddr) {
+ printk (KERN_ERR PFX "%s: cannot map PIO, aborting\n", pci_name(pdev));
+ rc = -EIO;
+ goto err_out;
+ }
dev->base_addr = pio_start;
tp->mmio_addr = ioaddr;
tp->regs_len = pio_len;
#else
/* ioremap MMIO region */
- ioaddr = ioremap (mmio_start, mmio_len);
+ ioaddr = pci_iomap(pdev, 1, 0);
if (ioaddr == NULL) {
printk (KERN_ERR PFX "%s: cannot remap MMIO, aborting\n", pci_name(pdev));
rc = -EIO;
@@ -947,7 +927,7 @@
struct net_device *dev = NULL;
struct rtl8139_private *tp;
int i, addr_len, option;
- void *ioaddr;
+ void __iomem *ioaddr;
static int board_idx = -1;
u8 pci_rev;
@@ -1147,47 +1127,46 @@
No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
*/
-#define eeprom_delay() readl(ee_addr)
+#define eeprom_delay() RTL_R32(Cfg9346)
/* The EEPROM commands include the alway-set leading bit. */
#define EE_WRITE_CMD (5)
#define EE_READ_CMD (6)
#define EE_ERASE_CMD (7)
-static int __devinit read_eeprom (void *ioaddr, int location, int addr_len)
+static int __devinit read_eeprom (void __iomem *ioaddr, int location, int addr_len)
{
int i;
unsigned retval = 0;
- void *ee_addr = ioaddr + Cfg9346;
int read_cmd = location | (EE_READ_CMD << addr_len);
- writeb (EE_ENB & ~EE_CS, ee_addr);
- writeb (EE_ENB, ee_addr);
+ RTL_W8 (Cfg9346, EE_ENB & ~EE_CS);
+ RTL_W8 (Cfg9346, EE_ENB);
eeprom_delay ();
/* Shift the read command bits out. */
for (i = 4 + addr_len; i >= 0; i--) {
int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
- writeb (EE_ENB | dataval, ee_addr);
+ RTL_W8 (Cfg9346, EE_ENB | dataval);
eeprom_delay ();
- writeb (EE_ENB | dataval | EE_SHIFT_CLK, ee_addr);
+ RTL_W8 (Cfg9346, EE_ENB | dataval | EE_SHIFT_CLK);
eeprom_delay ();
}
- writeb (EE_ENB, ee_addr);
+ RTL_W8 (Cfg9346, EE_ENB);
eeprom_delay ();
for (i = 16; i > 0; i--) {
- writeb (EE_ENB | EE_SHIFT_CLK, ee_addr);
+ RTL_W8 (Cfg9346, EE_ENB | EE_SHIFT_CLK);
eeprom_delay ();
retval =
- (retval << 1) | ((readb (ee_addr) & EE_DATA_READ) ? 1 :
+ (retval << 1) | ((RTL_R8 (Cfg9346) & EE_DATA_READ) ? 1 :
0);
- writeb (EE_ENB, ee_addr);
+ RTL_W8 (Cfg9346, EE_ENB);
eeprom_delay ();
}
/* Terminate the EEPROM access. */
- writeb (~EE_CS, ee_addr);
+ RTL_W8 (Cfg9346, ~EE_CS);
eeprom_delay ();
return retval;
@@ -1206,7 +1185,7 @@
#define MDIO_WRITE0 (MDIO_DIR)
#define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT)
-#define mdio_delay(mdio_addr) readb(mdio_addr)
+#define mdio_delay() RTL_R8(Config4)
static char mii_2_8139_map[8] = {
@@ -1223,15 +1202,15 @@
#ifdef CONFIG_8139TOO_8129
/* Syncronize the MII management interface by shifting 32 one bits out. */
-static void mdio_sync (void *mdio_addr)
+static void mdio_sync (void __iomem *ioaddr)
{
int i;
for (i = 32; i >= 0; i--) {
- writeb (MDIO_WRITE1, mdio_addr);
- mdio_delay (mdio_addr);
- writeb (MDIO_WRITE1 | MDIO_CLK, mdio_addr);
- mdio_delay (mdio_addr);
+ RTL_W8 (Config4, MDIO_WRITE1);
+ mdio_delay ();
+ RTL_W8 (Config4, MDIO_WRITE1 | MDIO_CLK);
+ mdio_delay ();
}
}
#endif
@@ -1241,35 +1220,36 @@
struct rtl8139_private *tp = netdev_priv(dev);
int retval = 0;
#ifdef CONFIG_8139TOO_8129
- void *mdio_addr = tp->mmio_addr + Config4;
+ void __iomem *ioaddr = tp->mmio_addr;
int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location;
int i;
#endif
if (phy_id > 31) { /* Really a 8139. Use internal registers. */
+ void __iomem *ioaddr = tp->mmio_addr;
return location < 8 && mii_2_8139_map[location] ?
- readw (tp->mmio_addr + mii_2_8139_map[location]) : 0;
+ RTL_R16 (mii_2_8139_map[location]) : 0;
}
#ifdef CONFIG_8139TOO_8129
- mdio_sync (mdio_addr);
+ mdio_sync (ioaddr);
/* Shift the read command bits out. */
for (i = 15; i >= 0; i--) {
int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0;
- writeb (MDIO_DIR | dataval, mdio_addr);
- mdio_delay (mdio_addr);
- writeb (MDIO_DIR | dataval | MDIO_CLK, mdio_addr);
- mdio_delay (mdio_addr);
+ RTL_W8 (Config4, MDIO_DIR | dataval);
+ mdio_delay ();
+ RTL_W8 (Config4, MDIO_DIR | dataval | MDIO_CLK);
+ mdio_delay ();
}
/* Read the two transition, 16 data, and wire-idle bits. */
for (i = 19; i > 0; i--) {
- writeb (0, mdio_addr);
- mdio_delay (mdio_addr);
- retval = (retval << 1) | ((readb (mdio_addr) & MDIO_DATA_IN) ? 1 : 0);
- writeb (MDIO_CLK, mdio_addr);
- mdio_delay (mdio_addr);
+ RTL_W8 (Config4, 0);
+ mdio_delay ();
+ retval = (retval << 1) | ((RTL_R8 (Config4) & MDIO_DATA_IN) ? 1 : 0);
+ RTL_W8 (Config4, MDIO_CLK);
+ mdio_delay ();
}
#endif
@@ -1282,13 +1262,13 @@
{
struct rtl8139_private *tp = netdev_priv(dev);
#ifdef CONFIG_8139TOO_8129
- void *mdio_addr = tp->mmio_addr + Config4;
+ void __iomem *ioaddr = tp->mmio_addr;
int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value;
int i;
#endif
if (phy_id > 31) { /* Really a 8139. Use internal registers. */
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
if (location == 0) {
RTL_W8 (Cfg9346, Cfg9346_Unlock);
RTL_W16 (BasicModeCtrl, value);
@@ -1299,23 +1279,23 @@
}
#ifdef CONFIG_8139TOO_8129
- mdio_sync (mdio_addr);
+ mdio_sync (ioaddr);
/* Shift the command bits out. */
for (i = 31; i >= 0; i--) {
int dataval =
(mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0;
- writeb (dataval, mdio_addr);
- mdio_delay (mdio_addr);
- writeb (dataval | MDIO_CLK, mdio_addr);
- mdio_delay (mdio_addr);
+ RTL_W8 (Config4, dataval);
+ mdio_delay ();
+ RTL_W8 (Config4, dataval | MDIO_CLK);
+ mdio_delay ();
}
/* Clear out extra bits. */
for (i = 2; i > 0; i--) {
- writeb (0, mdio_addr);
- mdio_delay (mdio_addr);
- writeb (MDIO_CLK, mdio_addr);
- mdio_delay (mdio_addr);
+ RTL_W8 (Config4, 0);
+ mdio_delay ();
+ RTL_W8 (Config4, MDIO_CLK);
+ mdio_delay ();
}
#endif
}
@@ -1325,7 +1305,7 @@
{
struct rtl8139_private *tp = netdev_priv(dev);
int retval;
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
retval = request_irq (dev->irq, rtl8139_interrupt, SA_SHIRQ, dev->name, dev);
if (retval)
@@ -1382,7 +1362,7 @@
static void rtl8139_hw_start (struct net_device *dev)
{
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
u32 i;
u8 tmp;
@@ -1484,7 +1464,7 @@
struct rtl8139_private *tp)
{
int linkcase;
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
/* This is a complicated state machine to configure the "twister" for
impedance/echos based on the cable length.
@@ -1568,7 +1548,7 @@
static inline void rtl8139_thread_iter (struct net_device *dev,
struct rtl8139_private *tp,
- void *ioaddr)
+ void __iomem *ioaddr)
{
int mii_lpa;
@@ -1676,7 +1656,7 @@
static void rtl8139_tx_timeout (struct net_device *dev)
{
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
int i;
u8 tmp8;
unsigned long flags;
@@ -1721,7 +1701,7 @@
static int rtl8139_start_xmit (struct sk_buff *skb, struct net_device *dev)
{
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
unsigned int entry;
unsigned int len = skb->len;
@@ -1763,7 +1743,7 @@
static void rtl8139_tx_interrupt (struct net_device *dev,
struct rtl8139_private *tp,
- void *ioaddr)
+ void __iomem *ioaddr)
{
unsigned long dirty_tx, tx_left;
@@ -1833,7 +1813,7 @@
/* TODO: clean this up! Rx reset need not be this intensive */
static void rtl8139_rx_err (u32 rx_status, struct net_device *dev,
- struct rtl8139_private *tp, void *ioaddr)
+ struct rtl8139_private *tp, void __iomem *ioaddr)
{
u8 tmp8;
#ifdef CONFIG_8139_OLD_RX_RESET
@@ -1930,7 +1910,7 @@
static void rtl8139_isr_ack(struct rtl8139_private *tp)
{
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
u16 status;
status = RTL_R16 (IntrStatus) & RxAckBits;
@@ -1949,7 +1929,7 @@
static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp,
int budget)
{
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
int received = 0;
unsigned char *rx_ring = tp->rx_ring;
unsigned int cur_rx = tp->cur_rx;
@@ -2087,7 +2067,7 @@
static void rtl8139_weird_interrupt (struct net_device *dev,
struct rtl8139_private *tp,
- void *ioaddr,
+ void __iomem *ioaddr,
int status, int link_changed)
{
DPRINTK ("%s: Abnormal interrupt, status %8.8x.\n",
@@ -2127,7 +2107,7 @@
static int rtl8139_poll(struct net_device *dev, int *budget)
{
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
int orig_budget = min(*budget, dev->quota);
int done = 1;
@@ -2165,7 +2145,7 @@
{
struct net_device *dev = (struct net_device *) dev_instance;
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
u16 status, ackstat;
int link_changed = 0; /* avoid bogus "uninit" warning */
int handled = 0;
@@ -2241,7 +2221,7 @@
static int rtl8139_close (struct net_device *dev)
{
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
int ret = 0;
unsigned long flags;
@@ -2304,7 +2284,7 @@
static void rtl8139_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct rtl8139_private *np = netdev_priv(dev);
- void *ioaddr = np->mmio_addr;
+ void __iomem *ioaddr = np->mmio_addr;
spin_lock_irq(&np->lock);
if (rtl_chip_info[np->chipset].flags & HasLWake) {
@@ -2338,7 +2318,7 @@
static int rtl8139_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct rtl8139_private *np = netdev_priv(dev);
- void *ioaddr = np->mmio_addr;
+ void __iomem *ioaddr = np->mmio_addr;
u32 support;
u8 cfg3, cfg5;
@@ -2506,7 +2486,7 @@
static struct net_device_stats *rtl8139_get_stats (struct net_device *dev)
{
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
unsigned long flags;
if (netif_running(dev)) {
@@ -2525,7 +2505,7 @@
static void __set_rx_mode (struct net_device *dev)
{
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
u32 mc_filter[2]; /* Multicast hash filter */
int i, rx_mode;
u32 tmp;
@@ -2586,7 +2566,7 @@
{
struct net_device *dev = pci_get_drvdata (pdev);
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
unsigned long flags;
pci_save_state (pdev);